The Retinol Meta Concentrate
Serum
4w ago

The Retinol Meta Concentrate

Biba De Sousa
27Ingredients
0EU Banned
4Caution
0.2/5Comedogenic
Pregnancy Risk1 ingredient flagged
0.2/5Comedogenic
Pregnancy Risk1 ingredient flagged
Allergen-freeNo fragrance allergens
67% Natural30% synthetic

Contains Regulated Ingredients

EU Restricted Ingredients

These ingredients are permitted in the EU but subject to concentration limits, usage conditions, or mandatory labelling requirements under Annex III of the EU Cosmetics Regulation.

Kojic AcidMax 1.0%
Max concentration:1.0%
Product types:Face and hand products
Conditions:From 1 February 2025 cosmetic products containing that substance and not complying with the conditions shall not be placed on the Union market. From 1 November 2025 cosmetic products containing that substance and not complying with the conditions shall not be made available on the Union market.
Sodium BenzoateMax a) 2.5% (acid) | b) 1.7% (acid) | c) 0.5% (acid)
Max concentration:a) 2.5% (acid) | b) 1.7% (acid) | c) 0.5% (acid)
Product types:a) Rinse-off products, except oral care products | b) Oral care products | c) Leave-on products
Butylated HydroxytolueneMax 8.0%
Max concentration:8.0%
Product types:a) Mouthwashb) Toothpastec) Other leave-on and rinse-off products
Conditions:From 1 July 2023 cosmetic products containing that substance and not complying with the restrictions shall not be placed on the Union market. From 1 January 2024 cosmetic products containing that substance and not complying with the restrictions shall not be made available on the Union market.
What does "EU Restricted" mean?

Restricted ingredients are not banned — they are allowed in cosmetic products as long as specific conditions are met:

  • Concentration limits — maximum allowed percentage in the final product
  • Product type restrictions — some ingredients are only allowed in rinse-off or leave-on products
  • pH restrictions — the finished product must stay within a specific pH range
  • Mandatory labelling — certain allergens must be listed on the packaging
  • Usage conditions — must not be combined with certain other ingredients

These limits are based on the EU CosIng database (Annex III) and are updated regularly. Products sold in the EU must comply with all applicable restrictions.

Ingredient Chemistry

pH

pH Efficacy

pH Efficacy

pH 5.3 — Suboptimal
5.3
0Neutral 714
pH estimated from category & ingredients: 5.3
Active ingredients: Retinol, Niacinamide, Copper Tripeptide-1, Kojic Acid, Glycolic Acid
Retinol at pH 5.3: optimal range (5–6)
Niacinamide at pH 5.3: optimal range (5–7)
Copper Tripeptide-1 at pH 5.3: optimal range (5–7)
Kojic Acid at pH 5.3: acceptable but not ideal (3.5–5 is best)
Glycolic Acid at pH 5.3: likely ineffective — above 4.5
Glycolic Acid is at pH 5.3, which is too high for optimal efficacy (3–4).
Detected actives & ideal pH
RetinolpH 5–6
NiacinamidepH 5–7
Copper Tripeptide-1pH 5–7
Kojic AcidpH 3.5–5
Glycolic AcidpH 3–4

Microbiome

Composition & Ethics

Product Details

Attributes

Ethics
VeganLikely
No animal-derived ingredients detected
Cruelty-FreeUnknown
No brand statement — contact manufacturer
Safety
Fragrance-FreeLikely
No fragrance ingredients detected
Key Actives
Niacinamide SerumConfirmed
Exfoliating SerumConfirmed
Brightening SerumConfirmed
Peptide SerumConfirmed
Confirmed Inferred Unknown Not compliant

Composition

67% natural29% synthetic
18 natural 1 unknown 8 synthetic

Based on 27 ingredients analyzed. 67% natural, 4% unknown and 29% synthetic.

Active ingredients6 actives
Preservatives2 preservatives

Functions Overview (15)

Texture & Feel

Texture & Feel

Expected texture
Viscous, serum-like — slightly "thick water" feel
SpreadabilityEasy
AbsorptionFast
Tackiness / ResidueLight
Finish:Luminous / radiant — subtle light-reflecting glow

Slight initial tackiness that fades into a hydrated dewy finish.